Reference Guide
debug fefd
Enable debugging of FEFD.
S4820T
Syntax
debug fefd {events | packets} [interface]
To disable debugging of FEFD, use the no debug fefd {events | packets} 
[interface] command.
Parameters
events Enter the keyword events to enable debugging of FEFD state 
changes.
packets Enter the keyword packets to enable debugging of FEFD to view 
information on packets sent and received.
interface
(OPTIONAL) Enter the following keywords and slot/port or number 
information:
• For a 10-Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet then the slot/port information.
• For a 1-Gigabit Ethernet interface, enter the keyword 
GigabitEthernet then the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword 
fortyGigE then the slot/ port information.
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the 
relevant 
FTOS Command Line Reference Guide
.
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.12.0 Introduced on the S4810.
Legacy E-Series 
command.
Related 
Commands
• fefd — enables far-end failure detection on an interface.
• fefd reset — enables FEFD globally on the system.
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